120345380 has 72 divisors (see below), whose sum is σ = 274796928. Its totient is φ = 44242432.

The previous prime is 120345371. The next prime is 120345383. The reversal of 120345380 is 83543021.

It is not an unprimeable number, because it can be changed into a prime (120345383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271439 + ... + 271881.

It is an arithmetic number, because the mean of its divisors is an integer number (3816624).

Almost surely, 2^120345380 is an apocalyptic number.

120345380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120345380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137398464).

120345380 is an abundant number, since it is smaller than the sum of its proper divisors (154451548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120345380 is a wasteful number, since it uses less digits than its factorization.

120345380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 120345380 is about 10970.2041913540. The cubic root of 120345380 is about 493.7151728893.

The spelling of 120345380 in words is "one hundred twenty million, three hundred forty-five thousand, three hundred eighty".